<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="jquery.3.4.1.js"></script>

</head>
<body>
<input type="text">
<input type="radio" name="sex" value="1">男
<input type="radio" name="sex" value="2" checked>女
<input type="checkbox" name="hobby" value="1" checked>抽烟
<input type="checkbox" name="hobby" value="2" checked>喝酒
<input type="checkbox" name="hobby" value="3" checked>烫头

<select name="city" id="" multiple>
    <option value="1">北京</option>
    <option value="2">山东</option>
    <option value="3">河北</option>
</select>
</body>
<script>

</script>
</html>